1
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Firdaus S, Boye S, Janke A, Friedel P, Janaszewska A, Appelhans D, Müller M, Klajnert-Maculewicz B, Voit B, Lederer A. Advancing Antiamyloidogenic Activity by Fine-Tuning Macromolecular Topology. Biomacromolecules 2023; 24:5797-5806. [PMID: 37939018 DOI: 10.1021/acs.biomac.3c00817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Amyloid β peptide can aggregate into thin β-sheet fibrils or plaques deposited on the extracellular matrix, which is the hallmark of Alzheimer's disease. Multifunctional macromolecular structures play an important role in inhibiting the aggregate formation of amyloidogenic materials and thus are promising candidates with antiamyloidogenic characteristics for the development of next-generation therapeutics. In this study, we evaluate how small differences in the dendritic topology of these structures influence their antiamyloidogenic activity by the comparison of "perfectly dendritic" and "pseudodendritic" macromolecules, both decorated with mannose units. Their compactness, the position of surface units, and the size of glyco-architectures influence their antiamyloidogenic activity against Aβ 40, a major component of amyloid plaques. For the advanced analysis of the aggregation of the Aβ peptide, we introduce asymmetric flow field flow fractionation as a suitable method for the quantification of large and delicate structures. This alternative method focuses on the quantification of complex aggregates of Aβ 40 and glycodendrimer/glyco-pseudodendrimer over different time intervals of incubation, showing a good correlation to ThT assay and CD spectroscopy results. Kinetic studies of the second-generation glyco-pseudodendrimer revealed maximum inhibition of Aβ 40 aggregates, verified with atomic force microscopy. The second-generation glyco-pseudodendrimer shows the best antiamyloidogenic properties confirming that macromolecular conformation in combination with optimal functional group distribution is the key to its performance. These molecular properties were validated and confirmed by molecular dynamics simulation.
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Affiliation(s)
- Shamila Firdaus
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Andreas Janke
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Peter Friedel
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Anna Janaszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-136 Łódź, Poland
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Martin Müller
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
- Technische Universität Dresden, 01062 Dresden, Germany
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-136 Łódź, Poland
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
- Technische Universität Dresden, 01062 Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
- Department Chemistry and Polymer Science, Stellenbosch University, 7602 Matieland, South Africa
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2
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Moreira DA, Santos SD, Leiro V, Pêgo AP. Dendrimers and Derivatives as Multifunctional Nanotherapeutics for Alzheimer's Disease. Pharmaceutics 2023; 15:pharmaceutics15041054. [PMID: 37111540 PMCID: PMC10140951 DOI: 10.3390/pharmaceutics15041054] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/15/2023] [Accepted: 03/18/2023] [Indexed: 04/29/2023] Open
Abstract
Alzheimer's disease (AD) is the most prevalent form of dementia. It affects more than 30 million people worldwide and costs over US$ 1.3 trillion annually. AD is characterized by the brain accumulation of amyloid β peptide in fibrillar structures and the accumulation of hyperphosphorylated tau aggregates in neurons, both leading to toxicity and neuronal death. At present, there are only seven drugs approved for the treatment of AD, of which only two can slow down cognitive decline. Moreover, their use is only recommended for the early stages of AD, meaning that the major portion of AD patients still have no disease-modifying treatment options. Therefore, there is an urgent need to develop efficient therapies for AD. In this context, nanobiomaterials, and dendrimers in particular, offer the possibility of developing multifunctional and multitargeted therapies. Due to their intrinsic characteristics, dendrimers are first-in-class macromolecules for drug delivery. They have a globular, well-defined, and hyperbranched structure, controllable nanosize and multivalency, which allows them to act as efficient and versatile nanocarriers of different therapeutic molecules. In addition, different types of dendrimers display antioxidant, anti-inflammatory, anti-bacterial, anti-viral, anti-prion, and most importantly for the AD field, anti-amyloidogenic properties. Therefore, dendrimers can not only be excellent nanocarriers, but also be used as drugs per se. Here, the outstanding properties of dendrimers and derivatives that make them excellent AD nanotherapeutics are reviewed and critically discussed. The biological properties of several dendritic structures (dendrimers, derivatives, and dendrimer-like polymers) that enable them to be used as drugs for AD treatment will be pointed out and the chemical and structural characteristics behind those properties will be analysed. The reported use of these nanomaterials as nanocarriers in AD preclinical research is also presented. Finally, future perspectives and challenges that need to be overcome to make their use in the clinic a reality are discussed.
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Affiliation(s)
- Débora A Moreira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- FEUP-Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Sofia D Santos
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Victoria Leiro
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Ana P Pêgo
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
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3
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Sorokina SA, Shifrina ZB. Dendrimers as Antiamyloid Agents. Pharmaceutics 2022; 14:760. [PMID: 35456594 PMCID: PMC9031116 DOI: 10.3390/pharmaceutics14040760] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/25/2022] [Accepted: 03/29/2022] [Indexed: 02/07/2023] Open
Abstract
Dendrimer-protein conjugates have significant prospects for biological applications. The complexation changes the biophysical behavior of both proteins and dendrimers. The dendrimers could influence the secondary structure of proteins, zeta-potential, distribution of charged regions on the surface, the protein-protein interactions, etc. These changes offer significant possibilities for the application of these features in nanotheranostics and biomedicine. Based on the dendrimer-protein interactions, several therapeutic applications of dendrimers have emerged. Thus, the formation of stable complexes retains the disordered proteins on the aggregation, which is especially important in neurodegenerative diseases. To clarify the origin of these properties and assess the efficiency of action, the mechanism of protein-dendrimer interaction and the nature and driving force of binding are considered in this review. The review outlines the antiamyloid activity of dendrimers and discusses the effect of dendrimer structures and external factors on their antiamyloid properties.
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Affiliation(s)
| | - Zinaida B. Shifrina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St., 119991 Moscow, Russia;
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4
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Teruya K, Doh-Ura K. Therapeutic development of polymers for prion disease. Cell Tissue Res 2022; 392:349-365. [PMID: 35307792 DOI: 10.1007/s00441-022-03604-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 02/24/2022] [Indexed: 12/20/2022]
Abstract
Prion diseases, also known as transmissible spongiform encephalopathies, are caused by the accumulation of abnormal isoforms of the prion protein (scrapie isoform of the prion protein, PrPSc) in the central nervous system. Many compounds with anti-prion activities have been found using in silico screening, in vitro models, persistently prion-infected cell models, and prion-infected rodent models. Some of these compounds include several types of polymers. Although the inhibition or removal of PrPSc production is the main target of therapy, the unique features of prions, namely protein aggregation and assembly accompanied by steric structural transformation, may require different strategies for the development of anti-prion drugs than those for conventional therapeutics targeting enzyme inhibition, agonist ligands, or modulation of signaling. In this paper, we first overview the history of the application of polymers to prion disease research. Next, we describe the characteristics of each type of polymer with anti-prion activity. Finally, we discuss the common features of these polymers. Although drug delivery of these polymers to the brain is a challenge, they are useful not only as leads for therapeutic drugs but also as tools to explore the structure of PrPSc and are indispensable for prion disease research.
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Affiliation(s)
- Kenta Teruya
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Seiryo-cho, Aoba-ku, Sendai, 980-8575, Japan
| | - Katsumi Doh-Ura
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Seiryo-cho, Aoba-ku, Sendai, 980-8575, Japan.
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5
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Ferrer-Lorente R, Lozano-Cruz T, Fernández-Carasa I, Miłowska K, de la Mata FJ, Bryszewska M, Consiglio A, Ortega P, Gómez R, Raya A. Cationic Carbosilane Dendrimers Prevent Abnormal α-Synuclein Accumulation in Parkinson's Disease Patient-Specific Dopamine Neurons. Biomacromolecules 2021; 22:4582-4591. [PMID: 34613701 PMCID: PMC8906628 DOI: 10.1021/acs.biomac.1c00884] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
![]()
Accumulation
of misfolded α-synuclein (α-syn) is a
hallmark of Parkinson’s disease (PD) thought to play important
roles in the pathophysiology of the disease. Dendritic systems, able
to modulate the folding of proteins, have emerged as promising new
therapeutic strategies for PD treatment. Dendrimers have been shown
to be effective at inhibiting α-syn aggregation in cell-free
systems and in cell lines. Here, we set out to investigate the effects
of dendrimers on endogenous α-syn accumulation in disease-relevant
cell types from PD patients. For this purpose, we chose cationic carbosilane
dendrimers of bow-tie topology based on their performance at inhibiting
α-syn aggregation in vitro. Dopamine neurons
were differentiated from induced pluripotent stem cell (iPSC) lines
generated from PD patients carrying the LRRK2G2019S mutation, which reportedly display
abnormal accumulation of α-syn, and from healthy individuals
as controls. Treatment of PD dopamine neurons with non-cytotoxic concentrations
of dendrimers was effective at preventing abnormal accumulation and
aggregation of α-syn. Our results in a genuinely human experimental
model of PD highlight the therapeutic potential of dendritic systems
and open the way to developing safe and efficient therapies for delaying
or even halting PD progression.
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Affiliation(s)
- Raquel Ferrer-Lorente
- Regenerative Medicine Program, and Program for Clinical Translation of Regenerative Medicine in Catalonia─P-CMR[C], L'Hospitalet de Llobregat (Barcelona), Institut d'Investigació Biomèdica de Bellvitge─IDIBELL, Barcelona 08907, Spain.,Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
| | - Tania Lozano-Cruz
- University of Alcalá, Department of Organic Chemistry and Inorganic Chemistry and Research Institute in Chemistry "Andrés M. del Río" (IQAR), Madrid 28805, Spain
| | - Irene Fernández-Carasa
- Department of Pathology and Experimental Therapeutics, Hospitalet de Llobregat (Barcelona), Universitat de Barcelona and Institut d'Investigació Biomèdica de Bellvitge─IDIBELL, Barcelona 08907, Spain
| | - Katarzyna Miłowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, Lodz 90-236, Poland
| | - Francisco Javier de la Mata
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid 28029, Spain.,University of Alcalá, Department of Organic Chemistry and Inorganic Chemistry and Research Institute in Chemistry "Andrés M. del Río" (IQAR), Madrid 28805, Spain
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, Lodz 90-236, Poland
| | - Antonella Consiglio
- Department of Pathology and Experimental Therapeutics, Hospitalet de Llobregat (Barcelona), Universitat de Barcelona and Institut d'Investigació Biomèdica de Bellvitge─IDIBELL, Barcelona 08907, Spain.,Department of Molecular and Translational Medicine, University of Brescia, Brescia 25121, Italy
| | - Paula Ortega
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid 28029, Spain.,University of Alcalá, Department of Organic Chemistry and Inorganic Chemistry and Research Institute in Chemistry "Andrés M. del Río" (IQAR), Madrid 28805, Spain
| | - Rafael Gómez
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid 28029, Spain.,University of Alcalá, Department of Organic Chemistry and Inorganic Chemistry and Research Institute in Chemistry "Andrés M. del Río" (IQAR), Madrid 28805, Spain
| | - Angel Raya
- Regenerative Medicine Program, and Program for Clinical Translation of Regenerative Medicine in Catalonia─P-CMR[C], L'Hospitalet de Llobregat (Barcelona), Institut d'Investigació Biomèdica de Bellvitge─IDIBELL, Barcelona 08907, Spain.,Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid 28029, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona 08907, Spain
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6
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Ghosh P, Bera A, Bhadury P, De P. From Small Molecules to Synthesized Polymers: Potential Role in Combating Amyloidogenic Disorders. ACS Chem Neurosci 2021; 12:1737-1748. [PMID: 33929827 DOI: 10.1021/acschemneuro.1c00104] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The concept of developing novel anti-amyloid inhibitors in the scientific community has engrossed remarkable research interests and embraced significant potential to resolve numerous pathological conditions including neurological as well as non-neuropathic disorders associated with amyloid protein aggregation. These pathological conditions have harmful effects on cellular activities which include malfunctioning of organs and tissue, cellular impairment, etc. To date, different types of small molecular probes like polyphenolic compounds, nanomaterials, surfactants, etc. have been developed to address these issues. Recently synthetic polymeric materials are extensively investigated to explore their role in the protein aggregation pathway. On the basis of these perspectives, in this review article, we have comprehensively summarized the current perspectives on protein misfolding and aggregation and importance of therapeutic approaches in designing novel effective inhibitors. The main purpose of this review article is to provide a detailed perspective of the current landscape as well as trailblazing voyage of various inhibitors ranging from small molecular probes to polymeric scaffolds in the field of protein misfolding and aggregation. A particular emphasis is given on the structural role and molecular mechanistic pathway involved in modulating the aggregation pathway to further inspire the researchers and shed light in this bright research field.
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7
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Marks MA, Kalaitzidou K, Gutekunst WR. Synthesis and Characterization of Cationic Dendrimer-PDMS Hybrids. Macromol Rapid Commun 2021; 42:e2000652. [PMID: 33368765 PMCID: PMC8085078 DOI: 10.1002/marc.202000652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/01/2020] [Indexed: 12/19/2022]
Abstract
A modular strategy for the synthesis of dendron-linear polymer hybrids comprised of a flexible polydimethylsiloxane (PDMS) midblock with cationic 2,2-bis(hydroxymethyl)propionic acid (bis-MPA) dendron end groups is developed. The invention of a scalable methodology to access quaternary ammonium carboxylate building blocks and their direct use in esterification chemistry enables rapid access to cationic bis-MPA dendrons. The convergent click coupling of highly charged dendrons to hydrophobic PDMS chain-ends gives a 12-membered family of hybrids that are comprised of different dendron generations (G1-3) and quaternary ammonium alkyl chain lengths (C4 , C8 , C12 , C16 ). This provides a library of materials with variable hydrophobicity, charge density, and chain-end valency. The physical behavior of the dendron-linear PDMS hybrid copolymers significantly changes after introduction of the cationic dendron end-groups and leads to soft-solid materials as a result of inhibited chain mobility. These PDMS-dendron hybrids are expected to behave as surface-active antimicrobial additives in bulk cross-linked silicone systems.
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Affiliation(s)
- Monica A Marks
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Kyriaki Kalaitzidou
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Will R Gutekunst
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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8
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Mustazza C, Sbriccoli M, Minosi P, Raggi C. Small Molecules with Anti-Prion Activity. Curr Med Chem 2020; 27:5446-5479. [PMID: 31560283 DOI: 10.2174/0929867326666190927121744] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 08/08/2019] [Accepted: 09/05/2019] [Indexed: 01/20/2023]
Abstract
Prion pathologies are fatal neurodegenerative diseases caused by the misfolding of the physiological Prion Protein (PrPC) into a β-structure-rich isoform called PrPSc. To date, there is no available cure for prion diseases and just a few clinical trials have been carried out. The initial approach in the search of anti-prion agents had PrPSc as a target, but the existence of different prion strains arising from alternative conformations of PrPSc, limited the efficacy of the ligands to a straindependent ability. That has shifted research to PrPC ligands, which either act as chaperones, by stabilizing the native conformation, or inhibit its interaction with PrPSc. The role of transition-metal mediated oxidation processes in prion misfolding has also been investigated. Another promising approach is the indirect action via other cellular targets, like membrane domains or the Protein- Folding Activity of Ribosomes (PFAR). Also, new prion-specific high throughput screening techniques have been developed. However, so far no substance has been found to be able to extend satisfactorily survival time in animal models of prion diseases. This review describes the main features of the Structure-Activity Relationship (SAR) of the various chemical classes of anti-prion agents.
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Affiliation(s)
- Carlo Mustazza
- National Centre for Control and Evaluation of Medicines, Italian National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy
| | - Marco Sbriccoli
- Department of Neurosciences, Italian National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy
| | - Paola Minosi
- National Centre for Drug Research and Evaluation, Italian National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy
| | - Carla Raggi
- National Centre for Control and Evaluation of Medicines, Italian National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy
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9
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Carone M, Moreno S, Cangiotti M, Ottaviani MF, Wang P, Carloni R, Appelhans D. DOTA Glycodendrimers as Cu(II) Complexing Agents and Their Dynamic Interaction Characteristics toward Liposomes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:12816-12829. [PMID: 32993292 PMCID: PMC8015221 DOI: 10.1021/acs.langmuir.0c01776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Copper (Cu)(II) ions, mainly an excess amount, play a negative role in the course of several diseases, like cancers, neurodegenerative diseases, and the so-called Wilson disease. On the contrary, Cu(II) ions are also capable of improving anticancer drug efficiency. For this reason, it is of great interest to study the interacting ability of Cu(II)-nanodrug and Cu(II)-nanocarrier complexes with cell membranes for their potential use as nanotherapeutics. In this study, the complex interaction between 1,4,7,10-tetraazacyclododecan-N,N',N'',N'''-tetraacetic acid (DOTA)-functionalized poly(propyleneimine) (PPI) glycodendrimers and Cu(II) ions and/or neutral and anionic lipid membrane models using different liposomes is described. These interactions were investigated via dynamic light scattering (DLS), ζ-potential (ZP), electron paramagnetic resonance (EPR), fluorescence anisotropy, and cryogenic transmission electron microscopy (cryo-TEM). Structural and dynamic information about the PPI glycodendrimer and its Cu(II) complexes toward liposomes was obtained via EPR. At the binding site Cu-N2O2 coordination prevails, while at the external interface, this coordination partially weakens due to competitive dendrimer-liposome interactions, with only small liposome structural perturbation. Fluorescence anisotropy was used to evaluate the membrane fluidity of both the hydrophobic and hydrophilic parts of the lipid bilayer, while DLS and ZP allowed us to determine the distribution profile of the nanoparticle (PPI glycodendrimer and liposomes) size and surface charge, respectively. From this multitechnique approach, it is deduced that DOTA-PPI glycodendrimers selectively extract Cu(II) ions from the bioenvironment, while these complexes interact with the liposome surface, preferentially with even more negatively charged liposomes. However, these complexes are not able to cross the cell membrane model and poorly perturb the membrane structure, showing their potential for biomedical use.
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Affiliation(s)
- Marianna Carone
- Department
of Chemistry and Biochemistry, University
of Bern, 3012 Bern, Switzerland
| | - Silvia Moreno
- Leibniz
Institute of Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
| | - Michela Cangiotti
- Department
of Pure and Applied Sciences, Università
degli studi di Urbino “Carlo Bo”, Urbino 61029, Italy
| | - Maria Francesca Ottaviani
- Department
of Pure and Applied Sciences, Università
degli studi di Urbino “Carlo Bo”, Urbino 61029, Italy
| | - Peng Wang
- Leibniz
Institute of Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
| | - Riccardo Carloni
- Department
of Pure and Applied Sciences, Università
degli studi di Urbino “Carlo Bo”, Urbino 61029, Italy
| | - Dietmar Appelhans
- Leibniz
Institute of Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
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10
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Holubová M, Štěpánek P, Hrubý M. Polymer materials as promoters/inhibitors of amyloid fibril formation. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04710-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Esmaili M, Tancowny BP, Wang X, Moses A, Cortez LM, Sim VL, Wille H, Overduin M. Native nanodiscs formed by styrene maleic acid copolymer derivatives help recover infectious prion multimers bound to brain-derived lipids. J Biol Chem 2020; 295:8460-8469. [PMID: 32358064 DOI: 10.1074/jbc.ra119.012348] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 04/14/2020] [Indexed: 11/06/2022] Open
Abstract
Prions are lipidated proteins that interact with endogenous lipids and metal ions. They also assemble into multimers and propagate into the infectious scrapie form known as PrPSc The high-resolution structure of the infectious PrPSc state remains unknown, and its analysis largely relies on detergent-based preparations devoid of endogenous ligands. Here we designed polymers that allow isolation of endogenous membrane:protein assemblies in native nanodiscs without exposure to conventional detergents that destabilize protein structures and induce fibrillization. A set of styrene-maleic acid (SMA) polymers including a methylamine derivative facilitated gentle release of the infectious complexes for resolution of multimers, and a thiol-containing version promoted crystallization. Polymer extraction from brain homogenates from Syrian hamsters infected with Hyper prions and WT mice infected with Rocky Mountain Laboratories prions yielded infectious prion nanoparticles including oligomers and microfilaments bound to lipid vesicles. Lipid analysis revealed the brain phospholipids that associate with prion protofilaments, as well as those that are specifically enriched in prion assemblies captured by the methylamine-modified copolymer. A comparison of the infectivity of PrPSc attached to SMA lipid particles in mice and hamsters indicated that these amphipathic polymers offer a valuable tool for high-yield production of intact, detergent-free prions that retain in vivo activity. This native prion isolation method provides an avenue for producing relevant prion:lipid targets and potentially other proteins that form multimeric assemblies and fibrils on membranes.
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Affiliation(s)
- Mansoore Esmaili
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Brian P Tancowny
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada.,Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada
| | - Xiongyao Wang
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada.,Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada
| | - Audric Moses
- Lipidomics Core Facility, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Leonardo M Cortez
- Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada.,Division of Neurology, Department of Medicine, Centre for Prions and Protein Folding Diseases, and Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Valerie L Sim
- Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada.,Division of Neurology, Department of Medicine, Centre for Prions and Protein Folding Diseases, and Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Holger Wille
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada .,Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada
| | - Michael Overduin
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada
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12
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Rajpoot K. Nanotechnology-based Targeting of Neurodegenerative Disorders: A Promising Tool for Efficient Delivery of Neuromedicines. Curr Drug Targets 2020; 21:819-836. [PMID: 31906836 DOI: 10.2174/1389450121666200106105633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/18/2019] [Accepted: 12/18/2019] [Indexed: 12/13/2022]
Abstract
Traditional drug delivery approaches remained ineffective in offering better treatment to various neurodegenerative disorders (NDs). In this context, diverse types of nanocarriers have shown their great potential to cross the blood-brain barrier (BBB) and have emerged as a prominent carrier system in drug delivery. Moreover, nanotechnology-based methods usually involve numerous nanosized carrier platforms, which potentiate the effect of the therapeutic agents in the therapy of NDs especially in diagnosis and drug delivery with negligible side effects. In addition, nanotechnology-based techniques have offered several strategies to cross BBB to intensify the bioavailability of drug moieties in the brain. In the last few years, diverse kinds of nanoparticles (NPs) have been developed by incorporating various biocompatible components (e.g., polysaccharide-based NPs, polymeric NPs, selenium NPs, AuNPs, protein-based NPs, gadolinium NPs, etc.), that showed great therapeutic benefits against NDs. Eventually, this review provides deep insights to explore recent applications of some innovative nanocarriers enclosing active molecules for the efficient treatment of NDs.
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Affiliation(s)
- Kuldeep Rajpoot
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, 495 009, Chhattisgarh, India
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13
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Validation of Poly(Propylene Imine) Glycodendrimers Towards Their Anti-prion Conversion Efficiency. Mol Neurobiol 2019; 57:1863-1874. [PMID: 31848935 DOI: 10.1007/s12035-019-01837-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 11/12/2019] [Indexed: 10/25/2022]
Abstract
Prion diseases, such as the sporadic Creutzfeldt-Jakob disease (sCJD), are a class of fatal neurodegenerative disorders. Currently, there is no efficient treatment or therapy available. Hence, the search for molecules that may inhibit the conversion of the cellular prion protein (PrPC) into its pathological counterpart PrPScrapie (PrPSc) is of great urgency. Here, we report the generation- and dose-dependent biological action of dense-shell poly(propylene imine) (PPI) glycodendrimers by using scrapie-infected neuroblastoma (ScN2a) cells and the real-time quaking-induced conversion assay (RT-QuIC) for validation of anti-prion efficiencies. Whereas the 2nd and 3rd generation of PPI glycodendrimers exhibited anti-prion conversion efficiency in ScN2a cells validated by RT-QuIC analysis, we observed that the 4th generation of glycodendrimers had shown no significant effect. Translational RT-QuIC studies conducted with human prions derived from sCJD patients indicated an anti-prion conversion effect (not on PrPRes degradation) of PPI glycodendrimers against human prions with the highest inhibitory activity of the 4th generation of PPI glycodendrimers towards prion aggregation compared to the 2nd and 3rd generation. In conclusion, our study highlights the potential of PPI glycodendrimers as therapeutic compounds due to their anti-conversion activity on human prions in a PrPSc strain depending manner.
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Vacchini M, Edwards R, Guizzardi R, Palmioli A, Ciaramelli C, Paiotta A, Airoldi C, La Ferla B, Cipolla L. Glycan Carriers As Glycotools for Medicinal Chemistry Applications. Curr Med Chem 2019; 26:6349-6398. [DOI: 10.2174/0929867326666190104164653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 11/07/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022]
Abstract
Carbohydrates are one of the most powerful and versatile classes of biomolecules that nature
uses to regulate organisms’ biochemistry, modulating plenty of signaling events within cells, triggering
a plethora of physiological and pathological cellular behaviors. In this framework, glycan carrier
systems or carbohydrate-decorated materials constitute interesting and relevant tools for medicinal
chemistry applications. In the last few decades, efforts have been focused, among others, on the development
of multivalent glycoconjugates, biosensors, glycoarrays, carbohydrate-decorated biomaterials
for regenerative medicine, and glyconanoparticles. This review aims to provide the reader with a general
overview of the different carbohydrate carrier systems that have been developed as tools in different
medicinal chemistry approaches relying on carbohydrate-protein interactions. Given the extent of
this topic, the present review will focus on selected examples that highlight the advancements and potentialities
offered by this specific area of research, rather than being an exhaustive literature survey of
any specific glyco-functionalized system.
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Affiliation(s)
- Mattia Vacchini
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Rana Edwards
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Roberto Guizzardi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Alessandro Palmioli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Carlotta Ciaramelli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Alice Paiotta
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Cristina Airoldi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Barbara La Ferla
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Laura Cipolla
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
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15
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Zhu Y, Liu C, Pang Z. Dendrimer-Based Drug Delivery Systems for Brain Targeting. Biomolecules 2019; 9:E790. [PMID: 31783573 PMCID: PMC6995517 DOI: 10.3390/biom9120790] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/14/2019] [Accepted: 11/22/2019] [Indexed: 02/06/2023] Open
Abstract
Human neuroscience has made remarkable progress in understanding basic aspects of functional organization; it is a renowned fact that the blood-brain barrier (BBB) impedes the permeation and access of most drugs to central nervous system (CNS) and that many neurological diseases remain undertreated. Therefore, a number of nanocarriers have been designed over the past few decades to deliver drugs to the brain. Among these nanomaterials, dendrimers have procured an enormous attention from scholars because of their nanoscale uniform size, ease of multi-functionalization, and available internal cavities. As hyper-branched 3D macromolecules, dendrimers can be maneuvered to transport diverse therapeutic agents, incorporating small molecules, peptides, and genes; diminishing their cytotoxicity; and improving their efficacy. Herein, the present review will give exhaustive details of extensive researches in the field of dendrimer-based vehicles to deliver drugs through the BBB in a secure and effectual manner. It is also a souvenir in commemorating Donald A. Tomalia on his 80th birthday.
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Affiliation(s)
- Yuefei Zhu
- Key Laboratory of Smart Drug Delivery, School of Pharmacy, Fudan University, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China; (Y.Z.); (C.L.)
- Department of Biomedical Engineering, Columbia University Medical Center, 3960 Broadway, New York, NY 10032, USA
| | - Chunying Liu
- Key Laboratory of Smart Drug Delivery, School of Pharmacy, Fudan University, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China; (Y.Z.); (C.L.)
| | - Zhiqing Pang
- Key Laboratory of Smart Drug Delivery, School of Pharmacy, Fudan University, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China; (Y.Z.); (C.L.)
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16
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Sorokina SA, Stroylova YY, Tishina SA, Shifrina ZB, Muronetz VI. Promising anti-amyloid behavior of cationic pyridylphenylene dendrimers: Role of structural features and mechanism of action. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.03.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Dwivedi N, Shah J, Mishra V, Tambuwala M, Kesharwani P. Nanoneuromedicine for management of neurodegenerative disorder. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.12.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Liegertová M, Wrobel D, Herma R, Müllerová M, Šťastná LČ, Cuřínová P, Strašák T, Malý M, Čermák J, Smejkal J, Štofik M, Maly J. Evaluation of toxicological and teratogenic effects of carbosilane glucose glycodendrimers in zebrafish embryos and model rodent cell lines. Nanotoxicology 2018; 12:797-818. [DOI: 10.1080/17435390.2018.1475582] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Michaela Liegertová
- Faculty of Science, Jan Evangelista Purkyne University, Usti nad Labem, Czech Republic
| | - Dominika Wrobel
- Faculty of Science, Jan Evangelista Purkyne University, Usti nad Labem, Czech Republic
| | - Regina Herma
- Faculty of Science, Jan Evangelista Purkyne University, Usti nad Labem, Czech Republic
| | - Monika Müllerová
- Institute of Chemical Process Fundamentals of the CAS, Prague, Czech Republic
| | | | - Petra Cuřínová
- Institute of Chemical Process Fundamentals of the CAS, Prague, Czech Republic
| | - Tomáš Strašák
- Institute of Chemical Process Fundamentals of the CAS, Prague, Czech Republic
| | - Marek Malý
- Faculty of Science, Jan Evangelista Purkyne University, Usti nad Labem, Czech Republic
| | - Jan Čermák
- Faculty of Science, Jan Evangelista Purkyne University, Usti nad Labem, Czech Republic
- Institute of Chemical Process Fundamentals of the CAS, Prague, Czech Republic
| | - Jiří Smejkal
- Faculty of Science, Jan Evangelista Purkyne University, Usti nad Labem, Czech Republic
| | - Marcel Štofik
- Faculty of Science, Jan Evangelista Purkyne University, Usti nad Labem, Czech Republic
| | - Jan Maly
- Faculty of Science, Jan Evangelista Purkyne University, Usti nad Labem, Czech Republic
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19
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Moscariello P, Ng DYW, Jansen M, Weil T, Luhmann HJ, Hedrich J. Brain Delivery of Multifunctional Dendrimer Protein Bioconjugates. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700897. [PMID: 29876217 PMCID: PMC5979778 DOI: 10.1002/advs.201700897] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/21/2018] [Indexed: 05/20/2023]
Abstract
Neurological disorders are undoubtedly among the most alarming diseases humans might face. In treatment of neurological disorders, the blood-brain barrier (BBB) is a challenging obstacle preventing drug penetration into the brain. Advances in dendrimer chemistry for central nervous system (CNS) treatments are presented here. A poly(amido)amine (PAMAM) dendrimer bioconjugate with a streptavidin adapter for the attachment of dendrons or any biotinylated drug is constructed. In vitro studies on porcine or murine models and in vivo mouse studies are performed and reveal the permeation of dendronized streptavidin (DSA) into the CNS. The bioconjugate is taken up mainly by the caveolae pathway and transported across the BBB via transcytosis escaping from lysosomes. After transcytosis DSA are delivered to astrocytes and neurons. Furthermore, DSA offer high biocompatibility in vitro and in vivo. In summary, a new strategy for implementing therapeutic PAMAM function as well as drug delivery in neuropathology is presented here.
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Affiliation(s)
- Pierpaolo Moscariello
- Institute of PhysiologyUniversity Medical Center of Johannes Gutenberg University MainzDuesbergweg 6D‐55128MainzGermany
| | - David Y. W. Ng
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Malin Jansen
- Institute of PhysiologyUniversity Medical Center of Johannes Gutenberg University MainzDuesbergweg 6D‐55128MainzGermany
| | - Tanja Weil
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Heiko J. Luhmann
- Institute of PhysiologyUniversity Medical Center of Johannes Gutenberg University MainzDuesbergweg 6D‐55128MainzGermany
| | - Jana Hedrich
- Institute of PhysiologyUniversity Medical Center of Johannes Gutenberg University MainzDuesbergweg 6D‐55128MainzGermany
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20
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Gorzkiewicz M, Buczkowski A, Appelhans D, Voit B, Pułaski Ł, Pałecz B, Klajnert-Maculewicz B. Poly(propyleneimine) glycodendrimers non-covalently bind ATP in a pH- and salt-dependent manner - model studies for adenosine analogue drug delivery. Int J Pharm 2018; 544:83-90. [PMID: 29653214 DOI: 10.1016/j.ijpharm.2018.03.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 03/30/2018] [Accepted: 03/31/2018] [Indexed: 12/31/2022]
Abstract
Adenosine analogue drugs (such as fludarabine or cladribine) require transporter-mediated uptake into cells and subsequent phosphorylation for anticancer activity. Therefore, application of nanocarrier systems for direct delivery of active triphosphate forms has been proposed. Here, we applied isothermal titration calorimetry and zeta potential titration to determine the stoichiometry and thermodynamic parameters of interactions between 4th generation poly(propyleneimine) dendrimers (unmodified or sugar-modified for increased biocompatibility) and ATP as a model adenosine nucleotide. We showed that glycodendrimers have the ability to efficiently interact with nucleoside triphosphates and to form stable complexes via electrostatic interactions between the ionized phosphate and amino groups on the nucleotide and the dendrimer, respectively. The complexation process is spontaneous, enthalpy-driven and depends on buffer composition (strongest interactions in organic buffer) and pH (more binding sites in acidic pH). These properties allow us to consider maltose-modified dendrimers as especially promising carriers for adenosine analogues.
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Affiliation(s)
- Michał Gorzkiewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland.
| | - Adam Buczkowski
- Department of Biophysical Chemistry, Faculty of Chemistry, University of Lodz, 165 Pomorska St., 90-236 Lodz, Poland
| | - Dietmar Appelhans
- Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, 01069 Dresden, Germany
| | - Brigitte Voit
- Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, 01069 Dresden, Germany
| | - Łukasz Pułaski
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; Laboratory of Transcriptional Regulation, Institute of Medical Biology PAS, 106 Lodowa St., 93-232 Lodz, Poland
| | - Bartłomiej Pałecz
- Department of Biophysical Chemistry, Faculty of Chemistry, University of Lodz, 165 Pomorska St., 90-236 Lodz, Poland
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, 01069 Dresden, Germany
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21
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Wrobel D, Marcinkowska M, Janaszewska A, Appelhans D, Voit B, Klajnert-Maculewicz B, Bryszewska M, Štofik M, Herma R, Duchnowicz P, Maly J. Influence of core and maltose surface modification of PEIs on their interaction with plasma proteins—Human serum albumin and lysozyme. Colloids Surf B Biointerfaces 2017; 152:18-28. [DOI: 10.1016/j.colsurfb.2016.12.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/10/2016] [Accepted: 12/31/2016] [Indexed: 11/25/2022]
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22
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Waqas M, Lee HM, Kim J, Telling G, Kim JK, Kim DH, Ryou C. Effect of poly-L-arginine in inhibiting scrapie prion protein of cultured cells. Mol Cell Biochem 2017; 428:57-66. [PMID: 28063003 DOI: 10.1007/s11010-016-2916-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 12/21/2016] [Indexed: 11/26/2022]
Abstract
Biological effect of poly-L-arginine (PLR), the linear homopolymer comprised of L-arginine, was investigated to determine the activity of suppressing prions. PLR decreased the level of scrapie prion protein (PrPSc) in cultured cells permanently infected with prions in a concentration-dependent manner. The PrPSc inhibition efficacy of PLR was greater than that of another prion-suppressant poly-L-lysine (PLK) in a molecular mass-dependent fashion. The effective concentration of PLR to inhibit prions was achieved safely below the cytotoxic concentrations, and overall cytotoxicity of PLR was similar to that of PLK. PLR did not alter the cellular prion protein (PrPC) level and was unable to change the states of preformed recombinant PrP aggregates and PrPSc from prion-infected cells. These data eliminate the possibility that the action mechanism of PLR is through removal of PrPC and pre-existing PrPSc. However, PLR formed complexes with plasminogen that stimulates prion propagation via conversion of PrPC to the misfolded isoform, PrPSc. The plasminogen-PLR complex demonstrated the greater positive surface charge values than the similar complex with PLK, raising the possibility that PLR interferes with the role of cofactor for PrPSc generation better than PLK.
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Affiliation(s)
- Muhammad Waqas
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Hye-Mi Lee
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Jeeyoung Kim
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Glenn Telling
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - Jin-Ki Kim
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Dae-Hwan Kim
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Chongsuk Ryou
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea.
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23
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Sorokina S, Semenyuk P, Stroylova Y, Muronetz V, Shifrina Z. Complexes between cationic pyridylphenylene dendrimers and ovine prion protein: do hydrophobic interactions matter? RSC Adv 2017. [DOI: 10.1039/c6ra26563d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
MD simulation predicted the possible binding sites for the dendrimer interactions with protein while ITC data revealed both electrostatic and hydrophobic driving forces for the complexation.
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Affiliation(s)
- S. Sorokina
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow
- Russian Federation
| | - P. Semenyuk
- Belozersky Institute of Physico-Chemical Biology
- Lomonosov Moscow State University
- Moscow
- Russian Federation
| | - Yu. Stroylova
- Belozersky Institute of Physico-Chemical Biology
- Lomonosov Moscow State University
- Moscow
- Russian Federation
| | - V. Muronetz
- Belozersky Institute of Physico-Chemical Biology
- Lomonosov Moscow State University
- Moscow
- Russian Federation
| | - Z. Shifrina
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow
- Russian Federation
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24
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Teruya K, Oguma A, Nishizawa K, Kawata M, Sakasegawa Y, Kamitakahara H, Doh-ura K. A Single Subcutaneous Injection of Cellulose Ethers Administered Long before Infection Confers Sustained Protection against Prion Diseases in Rodents. PLoS Pathog 2016; 12:e1006045. [PMID: 27973536 PMCID: PMC5156379 DOI: 10.1371/journal.ppat.1006045] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/07/2016] [Indexed: 02/04/2023] Open
Abstract
Prion diseases are fatal, progressive, neurodegenerative diseases caused by prion accumulation in the brain and lymphoreticular system. Here we report that a single subcutaneous injection of cellulose ethers (CEs), which are commonly used as inactive ingredients in foods and pharmaceuticals, markedly prolonged the lives of mice and hamsters intracerebrally or intraperitoneally infected with the 263K hamster prion. CEs provided sustained protection even when a single injection was given as long as one year before infection. These effects were linked with persistent residues of CEs in various tissues. More effective CEs had less macrophage uptake ratios and hydrophobic modification of CEs abolished the effectiveness. CEs were significantly effective in other prion disease animal models; however, the effects were less remarkable than those observed in the 263K prion-infected animals. The genetic background of the animal model was suggested to influence the effects of CEs. CEs did not modify prion protein expression but inhibited abnormal prion protein formation in vitro and in prion-infected cells. Although the mechanism of CEs in vivo remains to be solved, these findings suggest that they aid in elucidating disease susceptibility and preventing prion diseases. Prion diseases are progressive, fatal, neurodegenerative transmissible illnesses in humans and animals caused by prion accumulation in the brain and lymphoreticular system. Because they are prevalent in nature, with atypical forms continuing to emerge, prion diseases are potential threats to both public health and the economy. However, there are no effective methods to prevent these diseases. Here we report that cellulose ethers (CEs), which are non-digestible water-soluble polysaccharides that are commonly used as inactive ingredients in foods and pharmaceuticals, show prophylactic efficacy in prion-infected animals. CEs persist in various tissues and confer sustained preventive efficacy for years, suggesting that they help to prevent prion diseases. Although the enteral absorption of CEs is limited, we found that a portion of the absorbed CEs influences disease progression. Therefore, CEs may be useful to assess disease susceptibility and prevent disease occurrence.
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Affiliation(s)
- Kenta Teruya
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Ayumi Oguma
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Keiko Nishizawa
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Maki Kawata
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Yuji Sakasegawa
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hiroshi Kamitakahara
- Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Katsumi Doh-ura
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- * E-mail:
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25
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Amino acid modified hyperbranched poly(ethylene imine) with disaccharide decoration as anionic core–shell architecture: Influence of the pH and molecular architecture on solution behaviour. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.10.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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26
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Interactions of dendritic glycopolymer with erythrocytes, red blood cell ghosts and membrane enzymes. Int J Pharm 2015; 496:475-88. [DOI: 10.1016/j.ijpharm.2015.10.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 10/14/2015] [Accepted: 10/16/2015] [Indexed: 12/14/2022]
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27
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Sorokina SA, Stroylova YY, Shifrina ZB, Muronetz VI. Disruption of Amyloid Prion Protein Aggregates by Cationic Pyridylphenylene Dendrimers. Macromol Biosci 2015; 16:266-75. [DOI: 10.1002/mabi.201500268] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 09/16/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Svetlana A. Sorokina
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Vavilova str., 28 119991
| | - Yulia Yu. Stroylova
- Belozersky Institute of Physico-Chemical Biology; Lomonosov Moscow State University; Moscow Leninskye gory, 1/40, 119992 Russia
| | - Zinaida B. Shifrina
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Vavilova str., 28 119991
| | - Vladimir I. Muronetz
- Belozersky Institute of Physico-Chemical Biology; Lomonosov Moscow State University; Moscow Leninskye gory, 1/40, 119992 Russia
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28
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Striegler C, Schumacher M, Effenberg C, Müller M, Seckinger A, Schnettler R, Voit B, Hose D, Gelinsky M, Appelhans D. Dendritic Glycopolymer as Drug Delivery System for Proteasome Inhibitor Bortezomib in a Calcium Phosphate Bone Cement: First Steps Toward a Local Therapy of Osteolytic Bone Lesions. Macromol Biosci 2015; 15:1283-95. [PMID: 26018141 DOI: 10.1002/mabi.201500085] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 04/23/2015] [Indexed: 12/29/2022]
Abstract
Establishment of drug delivery system (DDS) in bone substitute materials for local treatment of bone defects still requires ambitious solutions for a retarded drug release. We present two novel DDS, a weakly cationic dendritic glycopolymer and a cationic polyelectrolyte complex, composed of dendritic glycopolymer and cellulose sulfate, for the proteasome inhibitor bortezomib. Both DDS are able to induce short-term retarded release of bortezomib from calcium phosphate bone cement in comparison to a burst-release of the drug from bone cement alone. Different release parameters have been evaluated to get a first insight into the release mechanism from bone cements. In addition, biocompatibility of the calcium phosphate cement, modified with the new DDS was investigated using human mesenchymal stromal cells.
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Affiliation(s)
- Christin Striegler
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.,Organic Chemistry of Polymers, Technische Universität Dresden, 01062 Dresden, Germany
| | - Matthias Schumacher
- Centre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty and University Hospital, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Christiane Effenberg
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Martin Müller
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Anja Seckinger
- Department of Internal Medicine V, Section Multiple Myeloma, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Reinhard Schnettler
- Laboratory for Experimental Trauma Surgery, Justus-Liebig-University Gießen, Schubertstr. 81, 35392 Giessen, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.,Organic Chemistry of Polymers, Technische Universität Dresden, 01062 Dresden, Germany
| | - Dirk Hose
- Department of Internal Medicine V, Section Multiple Myeloma, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany.
| | - Michael Gelinsky
- Centre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty and University Hospital, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany.
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.
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29
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Appelhans D, Klajnert-Maculewicz B, Janaszewska A, Lazniewska J, Voit B. Dendritic glycopolymers based on dendritic polyamine scaffolds: view on their synthetic approaches, characteristics and potential for biomedical applications. Chem Soc Rev 2015; 44:3968-96. [DOI: 10.1039/c4cs00339j] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The potential of dendritic glycopolymers based on dendritic polyamine scaffolds for biomedical applications is presented and compared with that of the structurally related anti-adhesive dendritic glycoconjugates.
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Affiliation(s)
- Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V
- 01069 Dresden
- Germany
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics
- Faculty of Biology and Environmental Protection
- University of Lodz
- 90-236 Lodz
- Poland
| | - Anna Janaszewska
- Department of General Biophysics
- Faculty of Biology and Environmental Protection
- University of Lodz
- 90-236 Lodz
- Poland
| | - Joanna Lazniewska
- Department of General Biophysics
- Faculty of Biology and Environmental Protection
- University of Lodz
- 90-236 Lodz
- Poland
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V
- 01069 Dresden
- Germany
- Organic Chemistry of Polymers
- Technische Universität Dresden
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30
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Polikarpov N, Potolytsyna V, Bessonova E, Tripp S, Appelhans D, Voit B, Kartsova L. Dendritic glycopolymers as dynamic and covalent coating in capillary electrophoresis: View on protein separation processes and detection of nanogram-scaled albumin in biological samples. J Chromatogr A 2015; 1378:65-73. [DOI: 10.1016/j.chroma.2014.11.051] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 10/31/2014] [Accepted: 11/17/2014] [Indexed: 12/25/2022]
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31
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Kannan RM, Nance E, Kannan S, Tomalia DA. Emerging concepts in dendrimer-based nanomedicine: from design principles to clinical applications. J Intern Med 2014; 276:579-617. [PMID: 24995512 DOI: 10.1111/joim.12280] [Citation(s) in RCA: 348] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Dendrimers are discrete nanostructures/nanoparticles with 'onion skin-like' branched layers. Beginning with a core, these nanostructures grow in concentric layers to produce stepwise increases in size that are similar to the dimensions of many in vivo globular proteins. These branched tree-like concentric layers are referred to as 'generations'. The outer generation of each dendrimer presents a precise number of functional groups that may act as a monodispersed platform for engineering favourable nanoparticle-drug and nanoparticle-tissue interactions. These features have attracted significant attention in medicine as nanocarriers for traditional small drugs, proteins, DNA/RNA and in some instances as intrinsically active nanoscale drugs. Dendrimer-based drugs, as well as diagnostic and imaging agents, are emerging as promising candidates for many nanomedicine applications. First, we will provide a brief survey of recent nanomedicines that are either approved or in the clinical approval process. This will be followed by an introduction to a new 'nanoperiodic' concept which proposes nanoparticle structure control and the engineering of 'critical nanoscale design parameters' (CNDPs) as a strategy for optimizing pharmocokinetics, pharmocodynamics and site-specific targeting of disease. This paradigm has led to the emergence of CNDP-directed nanoperiodic property patterns relating nanoparticle behaviour to critical in vivo clinical translation issues such as cellular uptake, transport, elimination, biodistribution, accumulation and nanotoxicology. With a focus on dendrimers, these CNDP-directed nanoperiodic patterns are used as a strategy for designing and optimizing nanoparticles for a variety of drug delivery and imaging applications, including a recent dendrimer-based theranostic nanodevice for imaging and treating cancer. Several emerging preclinical dendrimer-based nanotherapy concepts related to inflammation, neuro-inflammatory disorders, oncology and infectious and ocular diseases are reviewed. Finally we will consider challenges and opportunities anticipated for future clinical translation, nanotoxicology and the commercialization of nanomedicine.
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Affiliation(s)
- R M Kannan
- Department of Ophthalmology, Center for Nanomedicine, Baltimore, MD, USA
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32
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Salem S, Müller M, Torger B, Janke A, Eichhorn KJ, Voit B, Appelhans D. Glycopolymer Polyelectrolyte Multilayers Composed of Heparin and Maltose-Modified Poly(ethylene imine) as a Strong/Weak Polyelectrolyte System for Future Drug Delivery Coatings: Influence of pH and Sugar Architecture on Growth of Multilayers and Multilaye. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400428] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Samaa Salem
- Leibniz-Institut für Polymerforschung Dresden e.V.; Hohe Straße 6 D-01069 Dresden Germany
- Organic Chemistry of Polymers; Technische Universität Dresden; D-01062 Dresden Germany
| | - Martin Müller
- Leibniz-Institut für Polymerforschung Dresden e.V.; Hohe Straße 6 D-01069 Dresden Germany
| | - Bernhard Torger
- Leibniz-Institut für Polymerforschung Dresden e.V.; Hohe Straße 6 D-01069 Dresden Germany
- Organic Chemistry of Polymers; Technische Universität Dresden; D-01062 Dresden Germany
| | - Andreas Janke
- Leibniz-Institut für Polymerforschung Dresden e.V.; Hohe Straße 6 D-01069 Dresden Germany
| | - Klaus-Jochen Eichhorn
- Leibniz-Institut für Polymerforschung Dresden e.V.; Hohe Straße 6 D-01069 Dresden Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V.; Hohe Straße 6 D-01069 Dresden Germany
- Organic Chemistry of Polymers; Technische Universität Dresden; D-01062 Dresden Germany
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V.; Hohe Straße 6 D-01069 Dresden Germany
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33
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Paolino M, Komber H, Mennuni L, Caselli G, Appelhans D, Voit B, Cappelli A. Supramolecular Glycodendrimer-Based Hybrid Drugs. Biomacromolecules 2014; 15:3985-93. [DOI: 10.1021/bm501057d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Marco Paolino
- Dipartimento
di Biotecnologie, Chimica e Farmacia and European Research Centre for Drug Discovery and Development, Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Hartmut Komber
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse
6, 01069 Dresden, Germany
| | - Laura Mennuni
- Rottapharm Biotech S.r.l., Via Valosa
di Sopra 3, 20900 Monza, Italy
| | | | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse
6, 01069 Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse
6, 01069 Dresden, Germany
| | - Andrea Cappelli
- Dipartimento
di Biotecnologie, Chimica e Farmacia and European Research Centre for Drug Discovery and Development, Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy
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34
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Furlan S, La Penna G, Appelhans D, Cangiotti M, Ottaviani MF, Danani A. Combined EPR and molecular modeling study of PPI dendrimers interacting with copper ions: effect of generation and maltose decoration. J Phys Chem B 2014; 118:12098-111. [PMID: 25247928 DOI: 10.1021/jp505420s] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Understanding the early onset of neurodegeneration is crucial to deploy specific treatments for patients before the process becomes irreversible. Copper has been proposed as a biomarker for many neurodegenerative disorders, being the ion released by pathologically unfolded proteins involved in many biochemical pathways. Dendrimers are macromolecules that bind metal ions with a large ion/ligand ratio, thus, allowing a massive collection of copper. This work provides structural information, obtained via molecular modeling and EPR, for the binding sites of copper in polypropyleneimine (PPI) dendrimers, especially in the maltose decorated form that has potential applications in diagnosis and therapies for various types of neurodegenerations. The analysis of the EPR spectra showed that, at the lowest Cu concentrations, the results are well supported by the calculations. Moreover, EPR analysis at increasing Cu(II) concentration allowed us to follow the saturation behavior of the interacting sites identified by the modeling study.
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Affiliation(s)
- Sara Furlan
- Department of Chemical and Pharmaceutical Sciences, University of Trieste , Via Giorgieri 1, I-34127 Trieste, Italy
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35
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Tripp S, Appelhans D, Striegler C, Voit B. Oligosaccharide Shells as a Decisive Factor for Moderate and Strong Ionic Interactions of Dendritic Poly(ethylene imine) Scaffolds under Shear Forces. Chemistry 2014; 20:8314-9. [DOI: 10.1002/chem.201402147] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Indexed: 12/16/2022]
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36
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Bitan-Cherbakovsky L, Libster D, Appelhans D, Voit B, Aserin A, Garti N. Reversed Hexagonal Lyotropic Liquid-Crystal and Open-Shell Glycodendrimers as Potential Vehicles for Sustained Release of Sodium Diclofenac. J Phys Chem B 2014; 118:4016-24. [DOI: 10.1021/jp4125974] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Liron Bitan-Cherbakovsky
- The
Ratner Chair of Chemistry, Casali Institute of Applied Chemistry,
The Institute of Chemistry, The Hebrew University of Jerusalem, Edmond
J. Safra Campus, Givat Ram, Jerusalem 91904, Israel
| | - Dima Libster
- The
Ratner Chair of Chemistry, Casali Institute of Applied Chemistry,
The Institute of Chemistry, The Hebrew University of Jerusalem, Edmond
J. Safra Campus, Givat Ram, Jerusalem 91904, Israel
| | - Dietmar Appelhans
- Leibniz Institute of Polymer Research, Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
| | - Brigitte Voit
- Leibniz Institute of Polymer Research, Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
- Organic
Chemistry of Polymers, Technische Universität Dresden, 01062 Dresden, Germany
| | - Abraham Aserin
- The
Ratner Chair of Chemistry, Casali Institute of Applied Chemistry,
The Institute of Chemistry, The Hebrew University of Jerusalem, Edmond
J. Safra Campus, Givat Ram, Jerusalem 91904, Israel
| | - Nissim Garti
- The
Ratner Chair of Chemistry, Casali Institute of Applied Chemistry,
The Institute of Chemistry, The Hebrew University of Jerusalem, Edmond
J. Safra Campus, Givat Ram, Jerusalem 91904, Israel
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37
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McCarthy JM, Appelhans D, Tatzelt J, Rogers MS. Nanomedicine for prion disease treatment: new insights into the role of dendrimers. Prion 2014; 7:198-202. [PMID: 23764833 DOI: 10.4161/pri.24431] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Despite their devastating impact, no effective therapeutic yet exists for prion diseases at the symptomatic stage in humans or animals. Progress is hampered by the difficulty in identifying compounds that affect PrP (Sc) and the necessity of any potential therapeutic to gain access to the CNS. Synthetic polymers known as dendrimers are a particularly promising candidate in this area. Studies with cell culture models of prion disease and prion infected brain homogenate have demonstrated that numerous species of dendrimers eliminate PrP (Sc) in a dose and time dependent fashion and specific glycodendrimers are capable of crossing the CNS. However, despite their potential a number of important questions remained unanswered such as what makes an effective dendrimer and how dendrimers eliminate prions intracellularly. In a number of recent studies we have tackled these questions and revealed for the first time that a specific dendrimer can inhibit the intracellular conversion of PrP (C) to PrP (Sc) and that a high density of surface reactive groups is a necessity for dendrimers in vitro anti-prion activity. Understanding how a therapeutic works is a vital component in maximising its activity and these studies therefore represent a significant development in the race to find effective treatments for prion diseases.
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Affiliation(s)
- James M McCarthy
- School of Biology and Environmental Science, University College Dublin, Dublin, Ireland.
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38
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Klementieva O, Aso E, Filippini D, Benseny-Cases N, Carmona M, Juvés S, Appelhans D, Cladera J, Ferrer I. Effect of Poly(propylene imine) Glycodendrimers on β-Amyloid Aggregation in Vitro and in APP/PS1 Transgenic Mice, as a Model of Brain Amyloid Deposition and Alzheimer’s Disease. Biomacromolecules 2013; 14:3570-80. [DOI: 10.1021/bm400948z] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- O. Klementieva
- Institute of Neuropathology,
Pathologic Anatomy Service, IDIBELL-University Hospital Bellvitge, Feixa Llarga
sn, 08907 L’Hospitalet
de Llobregat, Spain
| | - E. Aso
- Institute of Neuropathology,
Pathologic Anatomy Service, IDIBELL-University Hospital Bellvitge, Feixa Llarga
sn, 08907 L’Hospitalet
de Llobregat, Spain
| | - D. Filippini
- Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
| | - N. Benseny-Cases
- Polygone
Scientifique Louis Néel, ESRF, 6 rue Jules Horowitz, 38000, Grenoble, France
| | - M. Carmona
- Institute of Neuropathology,
Pathologic Anatomy Service, IDIBELL-University Hospital Bellvitge, Feixa Llarga
sn, 08907 L’Hospitalet
de Llobregat, Spain
| | - S. Juvés
- Institute of Neuropathology,
Pathologic Anatomy Service, IDIBELL-University Hospital Bellvitge, Feixa Llarga
sn, 08907 L’Hospitalet
de Llobregat, Spain
| | - D. Appelhans
- Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
| | - J. Cladera
- Biophysics Unit
and Center of Studies in Biophysics, Department of Biochemistry
and Molecular Biology, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain
| | - I. Ferrer
- Institute of Neuropathology,
Pathologic Anatomy Service, IDIBELL-University Hospital Bellvitge, Feixa Llarga
sn, 08907 L’Hospitalet
de Llobregat, Spain
- Department
of Pathology and Experimental Therapy, School of Medicine, University of Barcelona, L’Hospitalet
de Llobregat, Spain
- CIBERNED, Instituto Carlos III, Madrid, Spain
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39
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Paolino M, Ennen F, Lamponi S, Cernescu M, Voit B, Cappelli A, Appelhans D, Komber H. Cyclodextrin-Adamantane Host–Guest Interactions on the Surface of Biocompatible Adamantyl-Modified Glycodendrimers. Macromolecules 2013. [DOI: 10.1021/ma400352m] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Marco Paolino
- Dipartimento di Biotecnologie,
Chimica e Farmacia and European Research Centre for Drug Discovery
and Development, Università degli Studi di Siena, Via A. Moro, 53100 Siena, Italy
- Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden,
Germany
| | - Franka Ennen
- Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden,
Germany
- Organic Chemistry
of Polymers, Technische Universität Dresden, 01062 Dresden,
Germany
| | - Stefania Lamponi
- Dipartimento di Biotecnologie,
Chimica e Farmacia and European Research Centre for Drug Discovery
and Development, Università degli Studi di Siena, Via A. Moro, 53100 Siena, Italy
| | - Mihaela Cernescu
- Institute of Physical
and Theoretical
Chemistry, Johann-Wolfgang-Goethe University, Max-von-Laue-Strasse 7, 60438 Frankfurt/Main, Germany
| | - Brigitte Voit
- Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden,
Germany
- Organic Chemistry
of Polymers, Technische Universität Dresden, 01062 Dresden,
Germany
| | - Andrea Cappelli
- Dipartimento di Biotecnologie,
Chimica e Farmacia and European Research Centre for Drug Discovery
and Development, Università degli Studi di Siena, Via A. Moro, 53100 Siena, Italy
| | - Dietmar Appelhans
- Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden,
Germany
| | - Hartmut Komber
- Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden,
Germany
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